Security of information is one of the most important factors of information technology and communication. Also an accurate automatic personal identification is essential in a wide range of application domains such as national ID card, electronic commerce and automated banking. So systems need strong security to protect data and resources access from unauthorized users. A biometric-based authentication system provides more security than other conventional approaches. Single biometric systems have a variety of problems such as noisy data, non-universality, spoof attacks and unacceptable error rate.